>> these are all hospitals 20 miles away in waco, and there will be more numbers. we, again, have fatalities confirmed, but we don't have that number, and that's something that everybody in that town is waiting for. these are people who have fathers and brothers and sisters who are volunteer firefighters. >> right. people who were very close to this describing this blast as what felt like being in a tornado or an atomic bomb, you know, and now there is concern about the people who have been evacuated, the other side of town now, the winds shifting direction possibly also affecting them because of the chemicals at this still burning plant. the fire under control but by no means out, and this is a small, small town. 2800 people, not a whole lot of resources, so there are a lot of resources being sent to them including state health department, mobile medical units, so hopefully by the time the sun comes out, they will have all the resources that they need. all right. coming up, more from texas. we're going to talk to abc's dr. richard besser about the danger in the air. stay with us.